|Season 4, Episode 6|
|Air date||November 17, 2014|
|Written by||Ian McCulloch|
|Directed by||Holly Dale|
"Regarding This Wedding"
2112 is the sixth episode of the fourth season and the 75th overall episode of Chicago Fire.
Severide and Patterson's differences reach a boiling point, while a visitor from Cruz's past asks for a favour.
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